In earthworm, the nephridia without neprostomes are

A. pharyngeal

B. integumentary

C. both (a) and (b)

D. none of these

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  1. Metamerism is present in
  2. The nitrogenous waste in earthworm consist of about
  3. In earthworm, the genital papillae are situated ventrally on segments
  4. The coelom in Pherethna is
  5. The terminal nephridial ducts of the septal nephridia of Pheretima open into
  6. Totally marine annelids belong to the
  7. Chetae are totally absent in
  8. Anticoagulant secreted by leech is
  9. In earthworm fertilisation occurs in
  10. Earthworms do not have any respiratory organs because
  11. A chitinous lining in earthworm is found in
  12. In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments.…
  13. Haemoglobin is dissolved in plasma is
  14. Chromophil cells in earthworm are concerned with the secretion of
  15. The chloragogen cells of earthworm are analogous to
  16. Pheretima is
  17. The excretory organs of earthworm are
  18. In Pheretima, the blood glands are located
  19. Earthworm has no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic…
  20. The dorsal blood vessel in earthworm is
  21. In earthworm, the first segment in which mouth is situated is known as
  22. Annelids show advancement over the nematoda in having
  23. Structure typically represented in every segment of earthworm is
  24. In earthworm testes are situated in the
  25. Chloragogen cells of Pheretima play a role very much like that of
  26. The number of segments in leech is
  27. Sperma thecae in earthworm are meant few
  28. In earthworm, the nephridia without neprostomes are
  29. Locomotion in Earthworm is directly facilitated by
  30. The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…